Mold.



OOO

MOLD.

Armonlox yILLD AUG. e, 1910.

GARROLL.

I LLA-0% orribili. i

MARTIN CARROLL, or KANSAS CITY, MISSOURI.

MOLD.

canone.

Speccation of Letters atent.

raten-tee naiv o5 ieri.

Application sied August 8, 1910. Serial No. 576,044.

To all whom it may conce/n:

Be it known that l. Maarn* CARROLL. a citizen ot' the United States.residing at Kansas City. in the county of Jackson and State of Missouri7have invented certain new and useful Improvements in Molds, of which thefollowing is a speciticatioln My invention relates to niolds.

It relates particularly to a clamping mechanism by which the members ofa mold may De releasably held together, and ist particularly adapted foruse in connection with molds for making concrete columns.

The novel ieatures of my invention are hereinafter more fully describedand claimed.

In the accompanying drawings illustrative of the preferred form of myinvention, Figure 1 is an elevation, showing the clamping mechanismmounted on a column mold. Fig. 2 is a plan View, the mold members beingshown in dotted lines. 'Fig'. 3 is a vertical section on the dotted linea-hot Fig. Q. Fig. 4 is a vertical section on the dotted line c-cZ ofFig. 2. Fig. 5 is a perspective view of one of the corner blocks.

Similar reference characters denote 'similar parts.

1 denotes the mold members comprising vertical planks disposed edge toedge to form -a mold rectangular in cross section. Two right angledclamping blocks 2 are provided. The two blocks are alike so that adescription of one. will suiiice for each. Each block 2 is provided onits upper side with a projection 3, preferably of rectangular form andhaving preferably in its two outer sides recesses ldisposed horizontallyatright angles to each other. The block 2 may also have two projections5 and 6 which are separated from the projection 3 by two grooves 7 and'8 disposed at right angles to each other and adapted to have lietherein horizontal clamping bars 9 which are pivoted respectively to twosimilar clamping bars 9 which afreadapted to lie in the grooves 7 and `8of the other block Each bar 9 is provided with a longitudinal rows ofholes 10 adapted to receive there in vertical bolts 11 'which serve asabutments against which may bear respectively four wedges 12, eachcomprising a fiat horizontal plate, preferably provided with `anobliquely disposed slot- 14 through which extends the serves to hold thewedge against the adjaadjacentboltl 11 the head of whiolr cntbar 9. Theother ends of the bolts 11 may have mounted on them nuts 15 which bearagainst the under sides ot the bars 9.' The inner straightedges ot thewedges 12 arc adapted for insertion in the recesses 4C of theprojections 3, thereby holding the wedges and the bars 9 againstvertical movement relative to the blocks 2. Each block 2 may have one ormore downwardly extending projectionsl having horizontal holes 17therethrough for the insertion of nails 18, or similar-devices, adaptedto be driven into the mold members 1 for detachably temporarilysupporting the blocks 2 until the wedges 12 have projections 5 and'serve to support the inner edges of thewedges 12 in the same manner inwhich the projections 3 support said wedges. 4

in operating my invention, the mold members 1 having been assembled inthe proper vertical positions, the blocks 2 are mounted thereon atdiagonally yopposite corners of the mold vto which they are secured bynails 18 extending through the projections 16 into the members 1. Theclamping bars 9 are then made to respectively embracethe four sides ofthe mold, and are mounted in` the grooves 7 and 8 between theprojections 3 andthe mold members 1, the two bars ot one pair crossing.the two members' of the other pair at right angles. The wedges 1.2 arethen mounted on the tops of the bars and disposed with their edges inthe recesses t. The bolts 11 are then passed through the slots 14 .ofthe wedges and also through theadjacent holes 10. The nuts lare thenmounted on the bolts'll below the bars; 9, after which the wedges aredriven to tighten them aga-inst the bolts 11 and projections 3, Sand 6,thus tightly clamping the mold members 1 together. To remove the clampmgbars from the mold, the operation just4 described is reversed.

been tightened. The

My invention may be subjected to many modifications, within the scope ofthe appended claims, without departing from 1ts spirit.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is

l. In a` mold, a device for clamping one si e of a mold, a block positeside of the mold7 and having a projection having a recess in its outerside, a clamping bar secured to said device and for clamping the topi.'

adopted 'to extend eci'osf, lie conch between the projection eiid themold, sii abutment adjustable length Wise of seid clamping her,

:oid e 1Wedge insertihle in seid recess and adopted to heer against seidblock end seid ohutment.

2. iii si mold, e` devi for clamping one side of e mold, e black fordemping the opposite side of the mold and having o piojectioo providedwith a recess in its coter side, s. clamping bei* secured to the deviceand adopted to extend across said boolr hetween the projection and themold and heving e longitudinal roe:y of holes, a Wedglfe im itihie inseid recess and having e slot posed ohliqoely to the portion disposed inseid recess, and e bolt ioscrtible through seid slot and through any ofseid holes.

3. In a meid, s pair oit devices for clamping adjacent sidesrespectively of a recteugiiler mold, :i corner block for clamping; theother two sides and having a projection having two recesses disposed etright ongles to each other iii its tivo outei17 sides, two clamping herssecured respectively 'to seid devices and adapted to extend et right :togies across each other between the mold and seid projection, two wedgesfor insertion res\ectively iii seid reces. eiid tivo shoe ments forrespectively securing the Wedges to seid hers' and respectivelyadjustable lengthwise of said hars.

et. In e mold, e pair et devices to? elempiiig adjacent sidesrespectively of a rectas-- guiar mold, i corner block for clamping theother two sides end having :i projection heviisg tivo recesses iii tivooctetY sides7 two clamping hers secured to said two devices respectivelyund adopted to extend et right :Regles across each other between 'theprojection mid the mold and having each e longi tudiiiel row of holes,two Wedges adopted to he disposed respectively iii seid recesses end tobear against said projection, and two bolts respectively insertible inthe holes of seid two rows and adopted to here the Wedges heer againstthem.

In a mold, e pair of devices 'tor clamp ing adjacentsides respectivelyoi a reetanguiar mold, e comer 'block :for clamping the other 'two sidesend having o.' pi'ojectioio having two recesses in its outer adjacentsides, two ciampinghors secu-red respectively to said devices :mtladopted to extend at right angles across each other between theyprojection and the mold, the here having each e longitudinal row ofholes, two Wedges inseitihie respectively in seid recesses and havingeach e slot .disposed obliquely to the port disposed iii-seid recess,and two bolts iiiseitibierespectively, through seid slots and throughthe holes in seid 'two hars forv securing the 'Wedges to said hers :mdfor supporting said Wedges.

lo testimony whereof l have signed my neme to this specification inpresence of two subscribing witnesses.

MARTXN CARRLL l/Vitnesses r E. B. Hoces, FLORENCE M. Veieoio.

